Professional LED Light Meter AP-881D features a wide measuring range from 0.1 to 400,000 Lux / 1 to 40,000 FC. Suitable for photographers, designers, and plant enthusiasts, this light meter meets a variety of lighting measurement needs. High accuracy: ±4% rdg ±0.5% fs (below 10,000 Lux; 1,000 FC) / ±5% rdg ±10 dgt (above 10,000 Lux; 1,000 FC). Resolution: 0.1 Lux / 0.01 FC. Measurement range: 0.1 to 400,000 Lux / 1 to 40,000 FC. Measurement speed: 2 times per second. 270-degree rotating detector allows flexible positioning to measure light levels from multiple angles without moving the device. Easily monitor lighting conditions throughout any space. Multi-functional and user-friendly with quick response, auto-zero function, data hold, peak hold, MAX/MIN recording, relative measurement mode, and LCD backlight for clear visibility in low-light environments. Designed for efficient and accurate light analysis.